This paper summarizes the Fast Fourier Transform (FFT) methodology, special equipment, set-up and testing that is recommended to properly characterize the surface of bearing journals that will not result in objectionable noise or vibration. Traditional surface profiles and finish callouts do not capture some of the key characteristics for addressing what is often the customer's greatest complaint, noise. Noise can vary based on the sensitivity of the vehicle but understanding how to accurately describe (design, test, and measure) a surface for a given vehicle can result in an optimized design and reduce process time during manufacturing. Furthermore, this paper will recommend techniques for determining the proper limits of the FFT callouts.
Bearing Surface Requirements (Waviness) for Driveline Shafts
Sae Int. J. Mater. Manuf
Sae International Journal of Materials and Manufacturing
SAE 2011 World Congress & Exhibition ; 2011
Sae International Journal of Materials and Manufacturing ; 4 , 1 ; 352-358
2011-04-12
7 pages
Conference paper
English
Bearing Surface Requirements (Waviness) for Driveline Shafts
British Library Conference Proceedings | 2011
|Bearing surface requirements ( waviness ) for driveline shafts
Automotive engineering | 2011
|Automotive engineering | 1979
|A touchdown bearing with surface waviness: Friction loss analysis
Online Contents | 2017
|MEASUREMENT OF SURFACE WAVINESS OF ROLLING-ELEMENT BEARING PARTS
SAE Technical Papers | 1960
|